Pattern for the exterior of an insect trap



FIG. 1 is a perspective view of a pattern for the exterior of an insect trap showing our new design;

FIG. 2 is a side view thereof, with all sides being identical; and,

FIG. 3 is a top plan view, the bottom plan view being identical.

The propane tank, cart, wheels, handle, dispenser, fuel line, cover, controls and trap cup shown in dashed lines are not a part of this design.

The broken line showing of environment in the drawings is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a pattern for the exterior of an insect trap, as shown and described. 